Since early 2025, Russia-linked ColdRiver has used LostKeys malware to steal files in espionage attacks on Western governments and organizations. Google’s Threat Intelligence Group discovered LOSTKEYS, a new malware used by Russia-linked APT COLDRIVER, in recent attacks to steal files and gather system info. The ColdRiver APT (aka “Seaborgium“, “Callisto”, “Star Blizzard”, “TA446”) is a Russian cyberespionage group […]
Google warns that the Russia-linked threat actor COLDRIVER expands its targeting and is developing a custom malware. The ColdRiver APT (aka “Seaborgium“, “Callisto”, “Star Blizzard”, “TA446”) is a Russian cyberespionage group that has been targeting government officials, military personnel, journalists and think tanks since at least 2015. In the past, the group’s activity involved persistent phishing […]